Don't appear on Add-on Bar Rated 4 out of 5 stars

I'ts a great tool. But, I have Firefox 29 and the icon don't appear on Add-on Bar.

This review is for a previous version of the add-on ( 

Firefox 29

Thanks for the feedback. You are the fisrt person to complain about it. And seen Firefox 29 is new. I would like to solve your problem asap. I have Firefox 29 on my machine but no issue.

Please do this:
- Click on the new menu toolbar of Firefox 29.
- At the bottom, click customize. Do you see the HTML Validator icon there ?
If yes, drag and drop it on the toolbar where it was.

- if not, right click on an empty space in the toolbar and click "customize..."
- the same list should show.

Whatever is the result, good or bad. Can you send me the result to my email "" ?
- please add the OS and OS version
- the version from which you upgraded or after which change that
the problem happened.
- also if possible screenshot of the issue if it is still there.